Pentair Coil/Tubesheet Sealing O-Ring Kit (Models 400NA, 400LP) || 77707-0119

Pentair Coil/Tubesheet Sealing O-Ring Kit (Models 400NA, 400LP) || 77707-0119

Genuine Pentair Replacement Part for Leak-Proof Performance

Ensure a secure, watertight seal for your Pentair MasterTemp and Max-E-Therm 400NA/400LP pool and spa heaters with the Pentair Coil/Tubesheet Sealing O-Ring Kit (77707-0119). This OEM Pentair replacement part prevents leaks, enhances heater efficiency, and extends the lifespan of your heating system.

Product Features & Benefits:

✔ Authentic Pentair Replacement – Designed for Pentair MasterTemp & Max-E-Therm models 400NA & 400LP
✔ Prevents Leaks & Enhances Performance – Ensures a secure seal between the coil and tubesheet
✔ High-Quality Material – Resistant to heat, chemicals, and prolonged water exposure
✔ Easy Installation – Compatible with existing hardware for a hassle-free replacement
✔ OEM Part Number: 77707-0119

SKU & UPC:

• SKU: 77707-0119
• UPC:
  022315209749

Brief History & Importance:

Pentair has been a leader in pool and spa heating solutions, providing durable and energy-efficient products for decades. The Coil/Tubesheet Sealing O-Ring Kit is an essential component in maintaining optimal heat transfer and preventing water leaks in your 400,000 BTU heater models.

Electrical & Installation Information:

• Always turn off the power to the heater before servicing.
• Remove the manifold assembly carefully to access the coil/tubesheet o-rings.
• Ensure seating surfaces are clean before installing new o-rings to avoid leaks.
• Apply a silicone-based lubricant to the o-rings for a better seal and easier installation.
• Tighten all components evenly and securely before restoring power.

Why Buy from ePoolSupply?

ePoolSupply.com is an authorized and preferred Pentair reseller, offering genuine OEM parts at the best prices. We provide fast shipping, expert support, and hassle-free service to keep your pool heating system running efficiently.

📦 Order your Pentair 77707-0119 Coil/Tubesheet Sealing O-Ring Kit today!